Improvement in hot-air furnaces



[105.1 r 8 zllmm/ Jzes Warm z' czzace .l2 mi. No. 118,988. Patented ep. i

Trl/5195393 [zfzaJz a/oolzz, Ind.

UNITED STATES PATENT OFFICE.

WILLIAM H. TURNER, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO HIMSELF AND CHARLES E. CARDELL, OF SAME PLAGE.

IMPROVEMENT IN HOT-AIR FURNACES.

Specication forming part of Letters Patent No. 118,988, dated September 12, 1871.

To all whom it may concern:

Beit known that I, WILLIAM H. TURNER, of Indianapolis, in the county of Marion and State of Indiana, have invented certain Improvements in Warm-Air Furnaces, of which the following is a specification:

This invention relates to that class of stoves or furnaces designed to be placed in the halls of buildings or rooms intended to be warmed, and which warms the air thereof by circulation ofthe air over a stove or heating apparatus inclosed in a suitable case instead of by direct radiation; and it consists in the construction and arrangement oi' the stove and case, as will hereinatter more .fully appear; and has for its object to facilitate and lessen the cost of construction and render the heating apparatus more efiicient in operation than those heretofore in use.

Figure l is a vertical section through the center of a furnace embodying my invention. Fig. 2 is a horizontal section taken on line a' x, Fig. l. Fig. 3 is a transverse vertical section of the stove. Fig. 4 is a top or plan view of the register in the top of the case. Fig. 5 is a vertical section through the top of the stove.

The external case, within which the stove A is placed, is composed of the base B and molded section-rings C, top casting D and sheet-iron sections E E, and register F, arranged in the top.

The base B is mounted on legs, as shown, and4 has openings G for the induction of the lower or cooler air of the room. The lower section contains the stove A and drum H; and the 'section rings C are so made as to diminish the case, as the sections are mounted one above another to give the furnace an ornamental appearance. U, water-urn. J, support to drum.

One object sought in the construction and arrangement of this furnace is to avoid bolting the several parts, both of the case and stove, together, so that the cost of fitting up may be lessened, and so that it may be set up and taken down and removed with less labor and time than heating apparatus of equal size as heretofore constructed. To accomplish this the base B and lower part of the rst section -ring O are provided with tlan ges a, ofthe same circumference, to receive the tirst section of sheet-iron E, and the upper part ofthe iirst section-ring and lower part of the second section-ring are provided with iianges a, diminshed to give the required form of the same circumference to receive the second section of sheetiron, and so on for any number of sections desired. With the base and section-rings thus constructed and arranged all that is required is to seam together the sections of sheet-iron, when the case is ready to be set up, with the exception of the doors to the stove and air-chamber, as hereafter described. The stove is made in four pieces, namely: the ash-pit or lower section I, formed as shown; the fuel-chamber or upper section A; the grate K; and the door-front L. The ash-pit section rests directly upon the base B, as shown, thereby saving the cost of a bottom to the stove proper.

The advantages of this construction of the stove will be apparent when it is considered that the usual iitting up and bolting together is obviated.

The front ends of the {ire-box and ash-pit have inwardly-projecting iianges e, by which they are riveted to the sheet-iron; and the frame L, to which the door O is hung, is secured on the outside at the same time by the same rivets. The ash-pit door is closed by a casting, to which the ash-pan is riveted in the usual manner. A door, P, is made in the case just above the stove, through which to put water in a pan set 011 the stove. H is a drum over the stove, and R the smoke-pipe. In order to obstruct the too free escape ofthe air through the register at the top ofthe case, so as to coniine it longer within the influence of the stove, l make the register with the horizontal stationary slats s above the revolving slats i, as shown. Vhen the furnace is placed in the corridors of buildings, with a view to warming several rooms, the above-described register may be placed in the walls near the ceiling and iloor of each room, so as to allow the warm air to pass into the room through the upper one and the cool air out into the corridor through the lower one; the combination and arrangement ofthe stationary and revolving slats s t being such as to prevent persons from seeing through the register, and yet admit of sutlicient circulation of the air. Under such circumstances as may be desired the radiation of heat through the casing may be entirely prevented by either lining the inside with tin, or in making the case double, with the outside of galvanized iron or other bright sheet metal.

I claim as my inventionl. The combination of the stove A, the drum H, the base B, thecylinders E connected by the rings C, and the register F provided With the bars s, all constructed and arranged substantially as and for the purpose set forth.

2. In combination With the furnace constructed as described, the register E, having the stationary bars s arranged to cover and obstruct the View through the openings between the revolving bars i, substantially as set forth.

, WILLIAM H. TURNER. Witnesses:

0. F. MAYHEW, WM. H. WEEKS. 

